The main Frequently Asked Questions are here
You may ask other questions in this thread.
SpaceEngineer wrote:Source of the post The main Frequently Asked Questions are here
Quarior wrote:Source of the post How does the coordinates in Space Engine change from XYZ to RA, Dec and Dist and vice versa ?
x = Dist * cos(Dec) * sin(RA);
y = Dist * sin(Dec);
z = Dist * cos(Dec) * cos(RA);
Dist = sqrt(x*x + y*y + z*z);
Dec = asin(y / Dist);
RA = atan2(x, z);
if (RA >= 2*pi) RA = RA - pi/2;
if (RA < 0) RA = RA + pi/2;
SpaceEngineer wrote:SpaceEngineer:Source of the post RA and Dec must be in radians, Dist in parsecs. xyz coordinates in SE are in Equatorial system (you may toggle the equatorial coordinate grid to see that).
SpaceEngineer wrote:Source of the post Regarding to you question, you can't place a black hole in the exact center of the galaxy using RA/Dec/Dist, because coordinates are stored in fp32 format internally. This mean that they has only 8-9 digits precision. You may type many digits in the script (like RA 3.4681313548866251), but only 8-9 first digits will be used.Hexadecimal format has a 3-millimeter precision across the entire Universe, but it is used only for camera.
Mosfet wrote:Source of the post Just a reminder for these calculations: in SE 0980, Equatorial grid displays shifted values of RA and Dec.
SpaceEngineer wrote:Source of the post Why you need this? You can't position stars in SE with accuracy of 3 mm anyway.
StarBarycenter "Proxima System"
AbsPosition (-00000000000000005CF7B4EA659695D7, -00000000000000012819D403B042F965, -00000000000000007978254DF318A650) //Universal position
StarBarycenter "Sagittarius system"
RefBody "Milkay Way"
RelPosition (0, 0, 0) //Position relative to the RefBody